angell



(No Model.)

T. ANGELI...

GAS CHECK.

No. 415,804. PatentedNov. 26, 1889.

N. PHERSy Phowulhugnpher, wuhingmn. n. c,

' UNITED STATES PATENT OFFICE.

THOHAS ANGELL, OF BROOKLYN, NET YORK, ASSIGNOR TO MARSHALL J. MORRILL,OF SAME PLACE.

GAS-CHECK.

SPECIFICATION forming part of Letters Patent No. 415,804., datedNovember 26, 1889.

Application iiled August 22, 1889. Serial No. 321,650. (No model.)

T0 all 1073017@ it may concern:

Be it known that I, THOMAS ANGELL, of Brooklyn, in the county of Kingsand State of New York, have invented an Improvement inPressure-Regulators, of which the following is a specification.

The object of this invention yis to simplify the construction and lessenthe cost of the gas-check, and to provide for easily adapting the partsto the different conditions of pressure in gasm ains.

In the drawings, Figure I is a vertical section of the improvedgas-check, and Fig. 2 is a sectional plan at the line a' fr.

The gas passes to the regulator or check by the pipe a, and at Z) aportion of the pipe leading to the gas-fixtures in the building isrepresented. The body c of the check extends out laterally from thecylindrical portion c', and at d is a supply-tube coupling forming aconnection from the pipe d to the cylinder c and having at its upper enda seat for the valve f, which seat is preferably conical and the lowerend of the valve of a similar shape, and there are guide-fingers 3 3extendingtdown from the valve and within the coupling-tube d to keep thevalve in position, but allow of its free vertical movement.

The body c receives the vertical stand-pipe e, that is screwed into thebody c, and such stand-pipe passes centrally through the bottom of theholder 7L for mercury or other liquid, and the parts are made tight by alock-nut 4 or similar device with packing of red lead or other material.Through the stand-pipe e there is a freely-moving stem C, fastened atits upper end to the inverted cup la, that is within the holder h, andthe lower end of this cup passes into the mercury or liquid within theholder. The lower end of the stein g is mortised for the passage of thelever Z, that at its other end passes into a slot in the weighted valvef and below the crossbar or pivot 6, and there is a fulcrum-pin o', thatpasses across the body c and through the lever l.

There is a removable screw-cap n atthe end of the body c for introducingor removing the lever Z, and I remark that thc lever l, being nearlystraight and plain, is easily passed through the mort-isc in the lowerend of the stem g and into the slotted valve, and the fulcrum-pin i canbe placed wherever desired, so as to vary the relative leverage of theweighted valve and the inverted cup.

It is to be understood that the weighted valve f is sufficient to closethe inlet-pipe a d, but it is counterpoised by the stem g and invertedcup so as nearly to balance, and when the pressure ot' gas below thevalve acts to lift such valve the inverted cup 7c descends, and thegas-pressure acting inside the inverted cup tends to raise the same andthereby lower the valve, and according to the pressure of gas requiredon the house side of check so the relative weight and leverage ot theinverted cup and valve may be increased or lessened, and for thispurpose weights may be applied at o, Fig. I, to load the cup, orcountersunk holes may be bored in the top of the valve f to lessen itsweight, and by removing the screw-plug and the fulci'um-pin t the leverl can be drawn out for repairs or for changing the leverage between thevalve and inverted cup by boring another hole and plugging up the iirsthole.

It will be apparent that, in consequence of the valve being slotted andhaving a crossbar, the inverted cup can rise Vor fall to a limitedextent without moving the valve, thus allowing for slight changes ofpressure, and the valve is free to rest by its own weight on the seat,and the regulator is cheap and easily constructed and kept in repair.

I am aware that the valve has been hinged to one end of the lever andthe stem of the cup hinged to the other end of the lever, and that alever has been used` that is not hinged to the valve.

By my improvement both the valve and the stem of the cup are free toaccommodate themselves to their proper position, because there is notany hinge at either end of the lever, and this renders the apparatuscheaper ICO pipe screwed to the body, the holder for :L 'cap at the endof the body, substantially as liquid,4the inverted cup, the stem passingspeoiiied. 10 through the stand-pipe and to the upper end Signed by niethis 20th dayof August, 1889.

of which the inverted @up is attached, the

removable lever passing through a mortise ayt THOS. ANGELL. the lowerend of Jthe stein into the slotted Witnesses:

valve, t fulorum-pin passing through the GEO. T. PINCKNEY,

lever and the body7 and a removable plug or WILLIAM G. MOTT.

